sexual life cycles Flashcards
(35 cards)
in asexual reproduction _____
a single individual passes genes to its offspring without fusion of gametes
clone
a group of genetically identical individuals from the SAME parent
in sexual reproduction offspring
having unique combinations
what reproduction maintains genetic variation
sexual reproduction
what are KEY for indicating sexual reproduction
meiosis and fertilization
advantages of asexual reproduction
- guarantee to pass on genetics
- safer - not looking for a mate
advantage of sexual reproduction
genetic variation
disadvantages of sexual reproduction
- may not find a mate
- mate could eat you after
life cycle
generation to generation sequence of stages in reproductive history of an organism
meiosis
diploid stage (2n) to haploid stage (n)
mitosis
haploid (n) to haploid (n)
diploid (2n) to diploid (2n)
fertilization is also known as
syngamy and fusion
what is the opposite of meiosis
fertilization (n + n = 2n)
what is a zygote
single cell that is diploid
is there a ploidy change in mitosis
NO
what is common to ALL sexually reproducing organisms
meiosis and fertilization
three main types of sexual life cycles differ in their
timing of meiosis and fertilization
life cycle for animals and some algae
gametic meiosis
what does meiosis make in gametic meiosis
gametes
what is the multicellular stage in gametic meiosis
diploid
number of mitotic events in gametic meiosis
ONE
true or false
fertilization does not always make a zygote
FALSE - it always does
life cycle of plants and some algae
sporic meiosis/alternation of generation
what does meiosis make in sproic meiosis
spores
